Question: What was Namibia's population in 1986?
Paraphrase: How many people lived in Namibia in 1986?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q1030 p:P1082 ?s . ?s ps:P1082 ?obj . ?s pq:P585 ?x filter(contains(YEAR(?x),'1986')) }